I was looking for something that was not as slippery as possible and I tried to buy it because there was irregularities on the back, but because it was unexpectedly slippery, it was almost unusable. Because the material is EVA, PVC seems to be still better. Because I'm singing for a toilet, I thought it would be fine, but in addition to tiles, I also slide abnormally on flooring materials. Attention is necessary.